GB/T 13537-2024 Chinese PDF (GB/T13537-2024) GB/T 33588.1-2025 1-2025_Chinese: Quality requirements for organic

1-2025_Chinese: Quality requirements for organic acids - Part 1: Citric acid (Chinese: 有机酸质量要求 第1部分：柠檬酸)

GB/T 45616

7-2024_Chinese: Methods for chemical analysis of silver - Part 7: Determination of gold and palladium content - Inductively coupled plasma emission spectrometry (Chinese: 银化学分析方法 第7部分：金、钯量的测定 电感耦合等离子体发射光谱法)

2-2025_Chinese: Acoustics - Measurement of the influence of road surfaces on traffic noise - Part 2: The close-proximity method (Chinese: 声学 道路表面对交通噪声影响的测量 第2部分：近距法)

English versions: GB/T 30844

GB/T 13537-2024 Chinese PDF (GB/T13537-2024) GB/T 33588.1-2025 1-2025_Chinese: Quality requirements for organicGB T 13537 2024_Chinese: General specification for electric motors for electronic household appliances (Chinese: ) Note Careful: Text of PDF is in Chinese (not English). Delivery (PDF in Chinese): 2 working hours typically, ASAP English versions: GB T 13537 2024